package DesignPatern.A09_命令模式.QSB.A03_升级模式;

/**
 * @Author: Du
 * @Date: 2021/7/23 15:44
 */
public class A01_Main
{
    public static void main(String[] args)
    {
        Invoker zs = new Invoker();
        Command addRequirementCommand = new AddRequirementCommand();
        zs.setCommand(addRequirementCommand);
        zs.action();
    }
}
